Your favourite buck converter [SOLVED]

[Unixon]

Hi!

I'm looking for a buck converter that is capable of delivering 12V at 3-5A from Vin in range 30-40V.
Something similar to TI's TPS565208 / TPS54302 but with higher Vin.
What would be your part of choice for these parameters?

[Unixon]

I completely forgot of another very nice TI's converter TPS54340 (TPS54540) which is exactly what I need. 
Looks like it's not the first time I had to find it... 

[mariush]

Don't have favorites for your scenario but looking at digikey i would suggest these

MP4316/MPQ4316  or MPQ4436 - 45V, 6A, Low IQ, Synchronous Step-Down Converter

or MPQ4317 - same but 7A max current

mp4316 https://www.digikey.com/en/products/detail/monolithic-power-systems-inc/MP4316GRE-Z/16499338 or

mpq4316 https://www.digikey.com/en/products/detail/monolithic-power-systems-inc/MPQ4316GRE-5-AEC1-Z/15928484

mpq4317 https://www.digikey.com/en/products/detail/monolithic-power-systems-inc/MPQ4317GRE-5-AEC1-Z/16265436

mpq4436 https://www.digikey.com/en/products/detail/monolithic-power-systems-inc/MP4436AGR-Z/13982881  or  https://www.digikey.com/en/products/detail/monolithic-power-systems-inc/MPQ4436GRE-AEC1-Z/13180810


also may want to look at dc-dc controllers so that you could have separate mosfets and maybe have 2 or more phases

example Renesas ISL81601 (60v buck-boost  2 phase controller)  : https://www.digikey.com/en/products/detail/renesas-electronics-corporation/ISL81601FRZ/9385329

See page 5 in schematic, has the complete development board schematic for up to 60v in, 12v out at up to 10A

Shame it's a bit expensive

[tooki]

Just as general info: TI’s Power Designer is, as far as I have found, unparalleled. I’ve designed multiple PSUs with its help.

On the other hand, if you want to try out actual hardware, MPS’s evaluation boards and USB-i2C interface are far, far cheaper than TI’s. I’ve been meaning to get some to play around with.